A4985SESTR-T Allegro Microsystems Inc, A4985SESTR-T Datasheet - Page 3

• Manufacturer Part Number: A4985SESTR-T
• Description: IC STEPPER MOTOR DRIVER 24QFN
• Manufacturer: Allegro Microsystems Inc

Specifications of A4985SESTR-T

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: *
• Voltage - Load: 8 V ~ 35 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-WFQFN Exposed Pad
• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 1A
• Output Voltage: 35V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: QFN
• No. Of Pins: 24
• Operating Temperature Range: -20°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 620-1374 - Board Eval Motor Control A4985
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

A4985
ENABLE
RESET
SLEEP
STEP
VDD
REF
MS1
MS2
DIR
V
Translator
REF
DAC
DAC
Regulator
Current
VREG
Mixed Decay
Mixed Decay
PWM Latch
PWM Latch
Blanking
Blanking
Control
Logic
0.22 F
DMOS Microstepping Driver with Translator
Functional Block Diagram
OSC
ROSC
Drive
Gate
OCP
OCP
DMOS Full Bridge
DMOS Full Bridge
CP1
Charge
Pump
And Overcurrent Protection
0.1 F
CP2
VCP
VBB1
VBB2
OUT1A
OUT1B
SENSE1
OUT2A
OUT2B
SENSE2
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
R
R
S1
S2
0.1 F
3